Does anyone know if there are any resources/websites out there that can export all the cards and the total number that are in circulation?I know you can get this information individually, but I am really hoping there is a tool that can speed this up for me.

I'm a new player to the game and had a pretty hard time completing today's daily challenge "Sneak Quest". I was pretty excited once I finally did win that 5th match but that soon turned to disappointment when I only received 2 Credits as my rewards. WTF is that!